Finding the Fourth Proportional to 31,030.22, 42,820.42 and 16,883.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,030.22 : 42,820.42 = 16,883.12 : x
2. Step 2: Convert to fraction form
   31,030.22/42,820.42 = 16,883.12/x
3. Step 3: Cross multiply
   31,030.22x = 42,820.42 × 16,883.12
4. Step 4: Simplify right side
   31,030.22x = 722,942,033.00
5. Step 5: Solve for x
   x = 722,942,033.00/31,030.22
6. Step 6: Final answer
   x = 23,298.00